Commit Graph

82 Commits

Author SHA1 Message Date
Scott Shawcroft 6797ec6ed3
Add support for grayscale displays that are < 8 bit depth.
This also improves Palette so it stores the original RGB888 colors.

Lastly, it adds I2CDisplay as a display bus to talk over I2C. Particularly
useful for the SSD1306.

Fixes #1828. Fixes #1956
2019-07-19 16:06:11 -07:00
Scott Shawcroft eb21fc3e31
Add partial display update support.
Different operations to the display tree have different costs. Be
aware of these costs when optimizing your code.
* Changing tiles indices in a TileGrid will update an area
covering them all.
* Changing a palette will refresh every object that references it.
* Moving a TileGrid will update both where it was and where it moved to.
* Adding something to a Group will refresh each individual area it
covers.
* Removing things from a Group will refresh one area that covers all
previous locations. (Not separate areas like add.)
* Setting a new top level Group will refresh the entire display.

Only TileGrid moves are optimized for overlap. All other overlaps
cause sending of duplicate pixels.

This also adds flip_x, flip_y and transpose_xy to TileGrid. They
change the direction of the pixels but not the location.

Fixes #1169. Fixes #1705. Fixes #1923.
2019-06-12 11:32:39 -07:00
Dan Halbert 4fc189b60c Merge latest 4.0.x fixes into master 2019-06-11 16:16:29 -04:00
Dan Halbert 62de2506e4 Include display objects in gc. 2019-06-06 17:49:32 -04:00
Scott Shawcroft 7a117f52ed
Make point 2 in areas exclusive and simplify full_coverage. 2019-05-22 15:00:47 -07:00
Scott Shawcroft 3fad7de8db
Rework the pixel computation to use areas
This changes the displayio pixel computation from per-pixel to
per-area. This is precursor work to updating portions of the screen
(#1169). It should provide mild speedups because bounds checks are
done once per area rather than once per pixel. Filling by area also
allows TileGrid to maintain a row-associative fill pattern even when
the display's refresh is orthogonal to it.
2019-05-21 17:41:06 -07:00
Scott Shawcroft 72992070c5
Fix boards with no shared busses. 2019-04-09 11:36:10 -07:00
Scott Shawcroft 0f003ac5b8
Reorganize board busses into shared-bindings and shared-module. 2019-04-08 16:58:50 -07:00
Scott Shawcroft 7686f93ef4
Fix crash when getting board.SPI outside the VM
If one of the default pins was already in use it would crash.

The internal API has been refined to allow us to get the value
without causing an init of the singleton.

Fixes #1753
2019-04-05 19:06:37 -07:00
Dan Halbert 43915133a1 after code.py runs, flush filesystem before resetting heap 2019-03-16 16:49:32 -04:00
Dan Halbert 1f31877d55 Rework background display task to allow reads from SPI SD card during display. Clarify code. Handle multiple displays better. 2019-03-07 00:08:16 -05:00
Dan Halbert c854f6617a check display-bus transaction status and act accordingly 2019-03-06 13:45:48 -05:00
Dan Halbert ced37c1001 Don't wait for display frame if interrupt pending 2019-02-28 22:36:50 -05:00
Scott Shawcroft b1e8c43679
Fix reload while display is updating. 2019-02-19 14:51:39 -08:00
Scott Shawcroft 46fd60c703
Prevent infinite display update recursion and fix VFS mounting
Fixes #1529
2019-02-19 14:50:31 -08:00
Scott Shawcroft 448ae64d8e
Add support for display rotation and raw commands
Display rotation is relative to the scan order of the display.
The scan order can be found by scrolling the display with command
0x37 `display_bus.send(0x37, struct.pack(">H", i % 128))`

Fixes #1504
2019-02-01 00:32:03 -08:00
Scott Shawcroft 2c069a5685
Polish up comments 2019-01-31 11:42:15 -08:00
Scott Shawcroft 4672866eec
Remove Sprite references 2019-01-31 11:42:14 -08:00
Scott Shawcroft 601a910f4e
More improvements to Terminal:
* Fix Hallowing.
* Fix builds without displayio.
* Fix y bounds that appears as untrollable row of pixels.
* Add scrolling to TileGrid.
* Remove Sprite to save space. TileGrid is a drop in replacement.
2019-01-31 11:42:14 -08:00
Scott Shawcroft 69bc5e189b
Rudamentary backlight support 2019-01-31 11:42:14 -08:00
Scott Shawcroft 1a1dbef992
Hook up the terminal based on the first display. 2019-01-31 11:42:14 -08:00
Scott Shawcroft 590e029198
Begin font parsing and packing for terminal 2019-01-31 11:42:13 -08:00
Scott Shawcroft b2f2abcb22
Make palette color ordering consistent with ColorConvertes and fix blinka. 2019-01-23 14:44:46 -08:00
Scott Shawcroft ae52c964c2
Cleanup display rework for PR.
Fixes #1465. Fixes #1337. Fixes #1168
2019-01-18 13:47:40 -08:00
Scott Shawcroft fddc98858a
fix nonetype handling and nrf never reset 2019-01-17 18:51:40 -08:00
Scott Shawcroft 6404aaf411
Fix up nrf and using board.SPI in FourWire 2019-01-17 18:19:07 -08:00
Scott Shawcroft 2d136d58bf
Fix other builds and hallowing 2019-01-17 14:45:29 -08:00
Scott Shawcroft 5277138c99
pyportal compiles and tweak blinka colors 2019-01-17 10:57:05 -08:00
Scott Shawcroft 84292ad890
External fourwire works and blinka splash after 2019-01-17 00:20:16 -08:00
Scott Shawcroft 05d8885a1a
Rework displays in prep for dynamic support and 8bit parallel. 2019-01-16 12:05:20 -08:00
Scott Shawcroft 747f2cfe26
Add subclass support to displayio.
Also, swap make_news to accept a kwarg map and refine param checking.

Fixes #1237
2019-01-14 17:29:19 -08:00
Scott Shawcroft 6697544cdf
Introduce displayio to render graphics to displays.
It's designed to minimize RAM footprint by using Sprites to
represent objects on the screen. The object model also facilitates
partial screen updating which reduces the bandwidth needed to display.

This is all handled in C. Python simply manipulates the objects with
the ability to synchronize to frame timing.
2018-08-31 12:31:52 -07:00